from django.conf import settings
from django.contrib.auth.models import AbstractUser
from django.db import models

#用户模型类，继承AbstractUser
from itsdangerous import TimedJSONWebSignatureSerializer

from utils.models import BaseModel


class User(AbstractUser):
    #添加手机号字段
    mobile=models.CharField(max_length=11,unique=True,verbose_name="手机号")
    #邮箱激活状态
    email_active = models.BooleanField(default=False,verbose_name="邮箱激活状态")
    #默认地址
    default_address = models.ForeignKey('users.address', related_name='users', null=True, blank=True,
                                        on_delete=models.SET_NULL, verbose_name='默认地址')

    class Meta:
        #设置表名
        db_table='tb_users'


    def __str__(self):
        return  self.username

    #生成认证邮箱url
    def generate_verify_url(self):
        #生成 token
        token={"user_id":self.id,"email":self.email}

        #加密
        t=TimedJSONWebSignatureSerializer(settings.SECRET_KEY,300)
        sign_token=t.dumps(token)

        #拼接到url地址
        verify_url = "http://www.meiduo.site:8080/success_verify_email.html?token=%s"%sign_token.decode()

        return verify_url

    #解密token
    @classmethod
    def decode_token(cls,token):
        #解密
        t = TimedJSONWebSignatureSerializer(settings.SECRET_KEY, 300)

        return t.loads(token)



class Address(BaseModel):
    """
    用户地址
    """
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='addresses', verbose_name='用户')
    title = models.CharField(max_length=20, verbose_name='地址名称')
    receiver = models.CharField(max_length=20, verbose_name='收货人')
    province = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='province_addresses', verbose_name='省')
    city = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='city_addresses', verbose_name='市')
    district = models.ForeignKey('areas.Area', on_delete=models.PROTECT, related_name='district_addresses', verbose_name='区')
    place = models.CharField(max_length=50, verbose_name='地址')
    mobile = models.CharField(max_length=11, verbose_name='手机')
    tel = models.CharField(max_length=20, null=True, blank=True, default='', verbose_name='固定电话')
    email = models.CharField(max_length=30, null=True, blank=True, default='', verbose_name='电子邮箱')
    is_deleted = models.BooleanField(default=False, verbose_name='逻辑删除')

    class Meta:
        db_table = 'tb_address'
        verbose_name = '用户地址'
        verbose_name_plural = verbose_name
        ordering = ['-update_time']

